Triethylenetetramine (Trientine) tetrahydrochloride is an orally active, potent, and selective copper chelator. It aids in the excretion of divalent copper ions from the body, reduces intestinal copper absorption, and minimizes copper accumulation. Additionally, Triethylenetetramine tetrahydrochloride exhibits potential anticancer properties through mechanisms such as telomerase inhibition, anti-angiogenesis, and promoting cancer cell apoptosis (apoptosis). This compound shows promise in the study of Wilson's disease, cancer, and diabetic complications.